Real Deal GBB Fill Valve O Ring Large
Is your GBB Magazine leaking again? Place the bottom of the mag in a clear glass of water to see if the leak is coming from the fill valve.
⁍ Pack of 5
⁍ 70 Durometer Buna- N O rings
⁍ Repair up to 5 magazines with one pack!
Over tightening of the fill valve upon installation can cause the O ring to deform and lose its seal.
Using Dry Gas such as propane without lubrication could also dry out O rings and cause leaks.
Keep that thang wet yah yeard ?